1978920305280

素因数分解:

$2^7\times 3^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2243}}^1$

素因数の和:2372

約数の個数: 896

約数和(自身を含む): 7445195619840

約数和(自身を除く): 5466275314560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 32, 36, 40, 45, 48, 54, 60, 61, 62, 64, 72, 80, 81, 90, 93, 96, 108, 120, 122, 124, 128, 135, 144, 155, 160, 162, 180, 183, 186, 192, 216, 240, 243, 244, 248, 270, 279, 288, 305, 310, 320, 324, 360, 366, 372, 384, 405, 432, 465, 480, 486, 488, 496, 540, 549, 558, 576, 610, 620, 640, 648, 720, 729, 732, 744, 810, 837, 864, 915, 930, 960, 972, 976, 992, 1080, 1098, 1116, 1152, 1215, 1220, 1240, 1296, 1395, 1440, 1458, 1464, 1488, 1620, 1647, 1674, 1728, 1830, 1860, 1891, 1920, 1944, 1952, 1984, 2160, 2196, 2232, 2243, 2430, 2440, 2480, 2511, 2592, 2745, 2790, 2880, 2916, 2928, 2976, 3240, 3294, 3348, 3456, 3645, 3660, 3720, 3782, 3888, 3904, 3968, 4185, 4320, 4392, 4464, 4486, 4860, 4880, 4941, 4960, 5022, 5184, 5490, 5580, 5673, 5760, 5832, 5856, 5952, 6480, 6588, 6696, 6729, 7290, 7320, 7440, 7533, 7564, 7776, 7808, 8235, 8370, 8640, 8784, 8928, 8972, 9455, 9720, 9760, 9882, 9920, 10044, 10368, 10980, 11160, 11215, 11346, 11664, 11712, 11904, 12555, 12960, 13176, 13392, 13458, 14580, 14640, 14823, 14880, 15066, 15128, 15552, 16470, 16740, 17019, 17280, 17568, 17856, 17944, 18910, 19440, 19520, 19764, 19840, 20088, 20187, 21960, 22320, 22430, 22599, 22692, 23328, 23424, 24705, 25110, 25920, 26352, 26784, 26916, 28365, 29160, 29280, 29646, 29760, 30132, 30256, 31104, 32940, 33480, 33645, 34038, 35136, 35712, 35888, 37665, 37820, 38880, 39040, 39528, 40176, 40374, 43920, 44469, 44640, 44860, 45198, 45384, 46656, 49410, 50220, 51057, 51840, 52704, 53568, 53832, 56730, 58320, 58560, 59292, 59520, 60264, 60512, 60561, 65880, 66960, 67290, 68076, 69533, 70272, 71776, 74115, 75330, 75640, 77760, 79056, 80352, 80748, 85095, 87840, 88938, 89280, 89720, 90396, 90768, 93312, 98820, 100440, 100935, 102114, 105408, 107136, 107664, 112995, 113460, 116640, 117120, 118584, 120528, 121024, 121122, 131760, 133920, 134580, 136152, 136823, 139066, 143552, 148230, 150660, 151280, 153171, 155520, 158112, 160704, 161496, 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約数ペア:

[(1, 1978920305280), (2, 989460152640), (3, 659640101760), (4, 494730076320), (5, 395784061056), (6, 329820050880), (8, 247365038160), (9, 219880033920), (10, 197892030528), (12, 164910025440), (15, 131928020352), (16, 123682519080), (18, 109940016960), (20, 98946015264), (24, 82455012720), (27, 73293344640), (30, 65964010176), (31, 63836138880), (32, 61841259540), (36, 54970008480), (40, 49473007632), (45, 43976006784), (48, 41227506360), (54, 36646672320), (60, 32982005088), (61, 32441316480), (62, 31918069440), (64, 30920629770), (72, 27485004240), (80, 24736503816), (81, 24431114880), (90, 21988003392), (93, 21278712960), (96, 20613753180), (108, 18323336160), (120, 16491002544), (122, 16220658240), (124, 15959034720), (128, 15460314885), (135, 14658668928), (144, 13742502120), (155, 12767227776), (160, 12368251908), (162, 12215557440), (180, 10994001696), (183, 10813772160), (186, 10639356480), (192, 10306876590), (216, 9161668080), (240, 8245501272), (243, 8143704960), (244, 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